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US 8,299,289 B2Granted
Isomerized alpha olefin sulfonate and method of making the same
AssigneeChevron Oronite Company LLC
InventorsCurtis Bay Campbell, Theresa Ann Denslow
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Abstract
The present invention is directed to an isomerized alpha olefin sulfonate and a method of making the same wherein the isomerized alpha olefin sulfonate is derived from sulfonating an isomerized alpha olefin with sulfur trioxide in the presence of air thereby producing an isomerized alpha olefin sulfonic acid, wherein the isomerized alpha olefin is derived from the isomerization of C12-C40 normal alpha olefins; and neutralizing the isomerized alpha olefin sulfonic acid with a source of a mono-valent cation.
Claims5
A method making an isomerized alpha olefin sulfonate comprising the steps of
- (a) sulfonating an isomerized alpha olefin with sulfur trioxide in the presence of air thereby producing primarily an isomerized alpha olefin sulfonic acid, wherein the isomerized alpha olefin is derived from the isomerization of C20-C28 normal alpha olefins;
- (b) optionally thermally digesting the product from step (a);
- (c) neutralizing the product from step (b) with a source of a mono-valent cation;
- and
- (d) optionally, hydrolyzing the product from step (c) with additional base or caustic.
2 more elements
Dependencies are inferred from the claim text.